RELESED Android 7.0 for MI4C, Mi4S, MIMAX, MIMAX PRO, MINote PRO
Your BOOTLOADER will be relocked after upgrade from Android 5.1 to Android 7.0MI4C, Mi4S, MINote PRO so unlock it by en.miui.com/unlock after ROM installation again!!!
How to upgrade to Andoid 7.0:
Install MIUI 6.12.22 before...